Scoop-sifter



(No Model.)

W. J. JOHNSON. Scoop Sifter.

No. 233,770. Patented Oct. 26,1880.

NITED STATES WILLIAM J. JOHNSON, OF NEWTON, ASSIGNOR TO NATIONAL MANUFAC- TUBING COMPANY, OF BOSTON, MASSACHUSETTS.

SCOOP-SIFTER.

SPECIFICATION formingpart of Letters Patent No. 233,770, dated October 26, 1880.

Application filed August 2, 1880.

To all whom it may concern Be it known that I, WILLIAM J. JOHNSON, of Newton, Massachusetts, have invented certain Improvements in Scoop-Sifters; and I hereby declare that the following specification is a full, clear, and exact description of the same, and the accompanying drawings are an illustration thereof.

The object of this invention is to simplify,

cheapen, and perfect that class of utensils which combines with a cylindrical body a netted sieve and a rotary agitator for the purpose of scooping up flour, meal, &c., crushing any lumps that may be therein, and facilitating the sitting thereof.

My improvements relate particularly to the sieve and the agitator resting thereon.

My invention consists in a scoop-sitter provided with a dome-shaped sieve, in combination with a rotary agitator having arms curved from the center downwardly and outwardly to correspond therewith.

My invention also consists in the combination of detachable parts set forth in the appended claims.

Heretofore such utensils have been furnished with a flat or concave sieve, over which the agitator moved. I have discovered, however, that practical advantages of importance are secured by the use of a sieve convex on its upper surface, as will be explained.

Referring to the drawings, Figure 1 is a broken perspective "iew of a scoop-sitter embodying my improvements, and Fig. 2 is an enlarged section at the base of the cylinder. Figs. 3 and 4. are detail views of the clutch.

A is the cylindrical body of the scoop, and B the handle, by which the implement may be held while in use.

O is the convex sieve, surrounded by a sheetmetal binding, D, and held in position at the bottom of the scoop by means of an inwardturned-flange, E, upon which the sieve rests loosely, without any necessity of soldering or other fastening.

F is the agitator, preferably a casting, having three arms radiating from the center of (N0 model.)

i the sieve, formed with an upturned foot at the extremity of each arm, and provided with three lugs or upward-taperin g projections, G, as shown.

H is the operating-shaft, mounted in bearings I 1, formed in wire brackets J J, which project from the side of the scoop next the handle B. The upper part of the shaft is bent to form a crank, and terminates in a knob, K, for rotating it, while its lower end has ahead, L, consisting of a triangular piece of metal secured to the shaft and fitting loosely between the lugs G, so that rotation of the shaft will rotate the agitator in either direction.

The head L may be secured directly to the end of the shaft; but in the drawings it is represented as held by means of a small hub or washer, M, beneath which the end of the shaft is clinched down, said hub passing into a central recess in the agitator and keeping the shaft centered.

Pressure of the agitator upon the convex sieve is secured by a loose sleeve of tin, N, surrounding the shaft and extending from the head L to the lower bearing, I, a loose washer, 0, being interposed between the upper end of the sleeve and said bearing. Thus the stiffness of the bracket J exerts, through the sleeve N and head L, abundant pressure of the agitator upon the sieve, and keeps the parts of the clutch G L in constant engagement.

The cheapness and convenience of construction thus set forth are obvious. No labor is expended on uniting the shaft and agitator, or the sieve and cylinder, or the sleeve and head, for they are not fastened to each other at all, but merely press one upon the other; hence, if any part becomes injured, it may be readily replaced, as the parts are separable on unsoldering the brackets.

The sieve being convex and eomin g down to the extreme bottom of the cylinder, no stock is wasted and excessive height of the scoop is not required, as it would be if the curve of the sieve were reversed. Wiring the bottom of the cylinder is also avoided, since theflange turned thereon to support the sieve is a smooth and sufficient finish. The dome shape of the sieve gives it great elasticity, adds to its durability, and enables sifting to be carried on with the utensil resting on a flat surface, since the arch of the gauze leaves a free open space beneath all the Working surface. A shorter shaft will of a dome-shaped sieve and a radiating agitator having armscurved to correspond therewith, substantially as set forth.

2. The combination of the body A, dome O, agitator F, and clutch G L, arranged to cooperate as stated, but detachable or separable from each other, substantially as and for the 20 purpose set forth.

WM. J. JOHNSON.

Witnesses:

W. B. HILL, A. H. SPENCER. 

